Changeset 96995 in vbox for trunk/src/VBox

Timestamp:

Oct 5, 2022 8:01:58 AM (2 years ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

153927

Message:

VMM/APIC: Fix pointer alignment for ASMBitTest, ASMAtomicBit[Set|Clear].

File:

• trunk/src/VBox/VMM/VMMAll/APICAll.cpp (modified) (3 diffs)

trunk/src/VBox/VMM/VMMAll/APICAll.cpp

@@ -86 +86 @@
 {
     const volatile uint8_t *pbBitmap = (const volatile uint8_t *)&pApicReg->u[0];
-    return ASMBitTest(pbBitmap + XAPIC_REG256_VECTOR_OFF(uVector), XAPIC_REG256_VECTOR_BIT(uVector));
+    return ASMBitTest(pbBitmap, (XAPIC_REG256_VECTOR_OFF(uVector) << 3) + XAPIC_REG256_VECTOR_BIT(uVector));
 }
 
@@ -99 +99 @@
 {
     volatile uint8_t *pbBitmap = (volatile uint8_t *)&pApicReg->u[0];
-    ASMAtomicBitSet(pbBitmap + XAPIC_REG256_VECTOR_OFF(uVector), XAPIC_REG256_VECTOR_BIT(uVector));
+    ASMAtomicBitSet(pbBitmap, (XAPIC_REG256_VECTOR_OFF(uVector) << 3) + XAPIC_REG256_VECTOR_BIT(uVector));
 }
 
@@ -112 +112 @@
 {
     volatile uint8_t *pbBitmap = (volatile uint8_t *)&pApicReg->u[0];
-    ASMAtomicBitClear(pbBitmap + XAPIC_REG256_VECTOR_OFF(uVector), XAPIC_REG256_VECTOR_BIT(uVector));
+    ASMAtomicBitClear(pbBitmap, (XAPIC_REG256_VECTOR_OFF(uVector) << 3) + XAPIC_REG256_VECTOR_BIT(uVector));
 }